Re: MouseDesk

[Lockar <lockar@nospam.com>]

   Hmm.. That's interesting.. I did not know that, that would make very
good sense the UniDisk 3 1/2 drive had it's own proscessor on the
drive.  

    Thanks for th info.

      -Lockar



In article <yq6dnVnFzqx3XFiiRVn-vg@comcast.com>, Bill Garber
<willy46pa@comcast.net> wrote:

> "Lockar" <lockar@nospam.com> wrote in message
> 271120030401458246%lockar@nospam.com">news:271120030401458246%lockar@nospam.com...
> >
> >   Okay, I am little confused here...
> >
> >      The file://c+ can be set to run at 1mhz so can the file://gs so I
> don't
> > understand how the speed of the CPU has to do with it (I know, I am
> > dumb! LOL).
> 
> The IIc+ and the IIgs actually run at 4 MHz and 2.8 MHz
> respectively, but both can be set to run at 1 MHz, however
> when the computer accesses a Disk II or Apple 5.25" drive
> the CPU is slowed to 1 MHz regardless of the speed at the
> time. When in 1 MHz speed, the IIgs will increase to 2.8
> MHz for Apple 3.5" drive accesses. The Apple 3.5" drive
> is a dumb drive and needs the extra speed to handle the
> read/write of the data to/from it, where the UniDisk 3.5"
> drives are made to work with packets of data and they tell
> the CPU when they are ready to send or receive more data.
> 
> >    But you are right, there was a firmware update to the orginal file://c
> > when the UniDisk 3.5 was put out.
> 
> Correct, only the original IIc needed the update. From
> Rom#00 on, they came with the UniDisk 3.5" drive capable
> firmware built in. I had bought several IIc #FF rom computers
> and performed the upgrade on them so now they are all #00.
> To determine which you have, type at the BASIC prompt,
> PRINT PEEK(64447), and if you get 255 you have the original
> rom, 00 is the UniDisk rom, 03 and 04 have the memory
> expansion ability and 05 is the IIc+.
> 
> Bill @ GarberStreet Enterprizez };-)
> Web Site - http://garberstreet.netfirms.com
> Email - willy4SPAM6pa@comXcast.net
> Remove - SPAM and X to contact me
> 
> 
> 
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